CVE-2021-34640

Securimage-WP-Fixed <= 3.5.4 Reflected Cross-Site Scripting

MEDIUM 6.1EPSS 2.3%

The Securimage-WP-Fixed WordPress plugin is vulnerable to Reflected Cross-Site Scripting due to the use of $_SERVER['PHP_SELF'] in the ~/securimage-wp.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 3.5.4.

Affected: Securimage-WP-Fixed
CVSS v3.1 NVD: 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v2.0 NVD: 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
EPSS: 2.31% chance of exploitation in the next 30 days, 83rd percentile
Nuclei: medium · CWE-79
Published: 2021-08-11
Updated: 2025-05-23

Nuclei templates (1)

projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-34640.yaml

Security advisories

https://plugins.trac.wordpress.org/browser/securimage-wp-fixed/trunk/securimage-wp.php#L6…
https://www.wordfence.com/vulnerability-advisories/#CVE-2021-34640

References

CVE Record
NVD entry